EP0950117B1 - Verfahren zur herstellung von metallen und metalllegierungen - Google Patents

Verfahren zur herstellung von metallen und metalllegierungen Download PDF

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Publication number
EP0950117B1
EP0950117B1 EP97939860A EP97939860A EP0950117B1 EP 0950117 B1 EP0950117 B1 EP 0950117B1 EP 97939860 A EP97939860 A EP 97939860A EP 97939860 A EP97939860 A EP 97939860A EP 0950117 B1 EP0950117 B1 EP 0950117B1
Authority
EP
European Patent Office
Prior art keywords
reduction
iron
natural gas
smelt
vessel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97939860A
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English (en)
French (fr)
Other versions
EP0950117A1 (de
EP0950117A4 (de
Inventor
Rodney James Dry
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Technological Resources Pty Ltd
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Technological Resources Pty Ltd
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Filing date
Publication date
Application filed by Technological Resources Pty Ltd filed Critical Technological Resources Pty Ltd
Publication of EP0950117A1 publication Critical patent/EP0950117A1/de
Publication of EP0950117A4 publication Critical patent/EP0950117A4/de
Application granted granted Critical
Publication of EP0950117B1 publication Critical patent/EP0950117B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/18—Reducing step-by-step
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]

Definitions

  • US 5069716 relates to a process for the direct production of iron-containing metal oxides wherein the hot discharge of direct reduced iron is fed to a melting furnace with the process gasses from the direct production furnace for refining the direct reduced iron to liquid steel.
  • solid carbonaceous product and/or solid carbon-containing product be supplied to the smelt reduction stage.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Manufacture Of Iron (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Claims (6)

  1. Verfahren zum Herstellen von Eisen und von eisenhaltigen Legierungen aus Eisenoxiden, wobei das Verfahren die folgenden Schritte umfaßt: partielles Vorreduzieren von Eisenoxiden in zwei oder mehr Vorreduzierungsstufen und danach Verbringen der vorreduzierten Eisenoxide zu einem Schmelzereduzierungsgefäß, das ein Schmelzebad oder Eisen und Schlacke enthält, und vollständiges Reduzieren der Eisenoxide und Herstellen von geschmolzenem Eisen in einer Schmelzereduzierungsstufe, wobei das Verfahren die folgenden Schritte umfaßt:
    (a) partielles Vorreduzieren von Eisenoxiden auf einen Vorreduzierungsgrad von wenigstens 11 % in einer Vorreduzierungsstufe unter Verwendung von Abgas, das als Reduktionsmittelquelle dient und in dem Schmelzereduzierungsgefäß erzeugt wird; und
    (b) Vorreduzieren der partiell reduzierten Eisenoxide von der ersten Vorreduzierungsstufe auf wenigstens 60 % in einer zweiten Vorreduzierungsstufe unter Verwendung von Erdgas und/oder gespaltenem Erdgas und/oder partiell gespaltenem Erdgas, die/das als Reduktionsmittelquelle dienen/dient.
  2. Verfahren nach Anspruch 1, bei dem der Vorreduzierungsgrad wenigstens 70 % beträgt.
  3. Verfahren nach Anspruch 2, bei dem der Vorreduzierungsgrad wenigstens 80 % beträgt.
  4. Verfahren nach Anspruch 3, bei dem der Vorreduzierungsgrad wenigstens 90 % beträgt.
  5. Verfahren nach einem der vorhergehenden Ansprüche, das die Lieferung überschüssigen Erdgases und/oder gespaltenen Erdgases und/oder partiell gespaltenen Erdgases an die oder jede Vorreduzierungsstufe umfaßt, um ein kohlehaltiges Festkörperprodukt wie etwa Ruß und/oder ein kohlenstoffhaltiges Festkörperprodukt wie etwa Eisencarbid zu erzeugen, und die Lieferung des kohlehaltigen Festkörperprodukts und/oder des kohlenstoffhaltigen Festkörperprodukts an die Schmelzereduzierungsstufe umfaßt.
  6. Verfahren nach Anspruch 1, bei dem das Schmelzereduzierungsgefäß untere und/oder seitliche Gewölbe/Abstichstangen und/oder obere Gewölbe/Abstichstangen umfaßt und das Verfahren das Einleiten eines festen und/oder gasförmigen kohlehaltigen Materials in das Schmelzebad durch die Gewölbe/Abstichstangen umfaßt.
EP97939860A 1996-10-07 1997-09-17 Verfahren zur herstellung von metallen und metalllegierungen Expired - Lifetime EP0950117B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPO276496 1996-10-07
AUPO2764A AUPO276496A0 (en) 1996-10-07 1996-10-07 A method and an apparatus for producing metals and metal alloys
PCT/AU1997/000611 WO1998015662A1 (en) 1996-10-07 1997-09-17 A method and an apparatus for producing metals and metal alloys

Publications (3)

Publication Number Publication Date
EP0950117A1 EP0950117A1 (de) 1999-10-20
EP0950117A4 EP0950117A4 (de) 1999-12-29
EP0950117B1 true EP0950117B1 (de) 2002-11-20

Family

ID=3797075

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97939860A Expired - Lifetime EP0950117B1 (de) 1996-10-07 1997-09-17 Verfahren zur herstellung von metallen und metalllegierungen

Country Status (13)

Country Link
US (1) US6273934B1 (de)
EP (1) EP0950117B1 (de)
CN (1) CN1071796C (de)
AU (1) AUPO276496A0 (de)
BR (1) BR9711873A (de)
CA (1) CA2267776A1 (de)
DE (1) DE69717310T2 (de)
ID (1) ID22145A (de)
NO (1) NO322992B1 (de)
RU (1) RU2198937C2 (de)
UA (1) UA63913C2 (de)
WO (1) WO1998015662A1 (de)
ZA (1) ZA978576B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT407400B (de) * 1998-10-07 2001-02-26 Voest Alpine Ind Anlagen Verfahren und anlage zum herstellen von eisen, insbesondere stahl
US6648942B2 (en) * 2001-01-26 2003-11-18 Midrex International B.V. Rotterdam, Zurich Branch Method of direct iron-making / steel-making via gas or coal-based direct reduction and apparatus
US20050151307A1 (en) * 2003-09-30 2005-07-14 Ricardo Viramontes-Brown Method and apparatus for producing molten iron
AU2009255522B2 (en) * 2008-06-02 2013-11-14 Exxonmobil Upstream Research Company Monetizing remote gas using high energy materials

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1143527A (en) 1966-03-22 1969-02-26 Conzinc Riotinto Ltd Direct smelting of oxide ores and concentrates
US3637368A (en) * 1968-10-16 1972-01-25 Exxon Research Engineering Co Increased metallizations of iron ore from fluidized bed processes
US3936296A (en) 1970-02-25 1976-02-03 Campbell Donald L Integrated fluidized reduction and melting of iron ores
DD100017A5 (de) 1971-11-01 1973-09-05
SE388875B (sv) 1975-03-03 1976-10-18 Stora Kopparbergs Bergslags Ab Sett vid reduktion av finkornigt jernoxidhaltigt material i flyttbedd
JPS5826422B2 (ja) 1976-03-03 1983-06-02 日本鉱業株式会社 フエロニツケルの製造方法
US4094665A (en) 1977-05-13 1978-06-13 Stora Kopparbergs Bergslags Ab Method for simultaneous combined production of electrical energy and crude iron
DE3300867A1 (de) 1983-01-13 1984-07-19 Mannesmann AG, 4000 Düsseldorf Verfahren zur erzeugung von stahl durch einschmelzen von eisenschwamm im lichtbogenofen
US4880458A (en) 1983-05-16 1989-11-14 Hylsa, S.A. De C.V. Start-up method for a direct reduction process without an external reformer
CA1244656A (en) 1984-12-03 1988-11-15 Wei-Kao Lu Processes and appparatus for the smelting reduction of smeltable materials
US4756748A (en) 1984-12-24 1988-07-12 Canadian Patents and Development Limited--Societe Canadienne des Brevets et d'Exploitation Limitee Processes for the smelting reduction of smeltable materials
AU582453B2 (en) * 1985-07-18 1989-03-23 Kabushiki Kaisha Kobe Seiko Sho Melt-reductive iron making method from iron ore
JPH079015B2 (ja) 1985-07-19 1995-02-01 株式会社神戸製鋼所 鉄鉱石の溶融還元方法
US4752329A (en) * 1986-03-21 1988-06-21 Midrex International B.V. Rotterdam, Zurich Branch Apparatus and method for increasing carbon content of hot directly reduced iron
DE3626027A1 (de) 1986-08-01 1988-02-11 Metallgesellschaft Ag Verfahren zur reduktion feinkoerniger, eisenhaltiger materialien mit festen kohlenstoffhaltigen reduktionsmitteln
JP2655864B2 (ja) 1988-03-14 1997-09-24 昭和電工株式会社 高還元クロム鉱石粉体の製造方法
DE3835332A1 (de) 1988-10-17 1990-04-19 Ralph Weber Verfahren zur herstellung von stahl aus feinerz
JP3150966B2 (ja) * 1988-12-20 2001-03-26 シーアールエイ・サービシーズ・リミテッド 複式溶解炉における鉄および鋼の製造並びに固体状態オキサイドけんだく物予備還元機
SU1655951A1 (ru) * 1989-06-29 1991-06-15 Восточный научно-исследовательский и проектный институт огнеупорной промышленности Магнезиально-шпинелидный огнеупор
US5069716A (en) * 1989-12-22 1991-12-03 C.V.G. Siderurgica Del Orinoco, C.A. Process for the production of liquid steel from iron containing metal oxides
DE4011870A1 (de) * 1990-04-12 1991-10-17 Bayer Ag Imidazolidinderivate
AT395435B (de) 1991-02-19 1992-12-28 Voest Alpine Ind Anlagen Verfahren zur inbetriebnahme einer anlage zur herstellung von roheisen oder stahlvormaterial, sowie anlage zur durchfuehrung des verfahrens
US5228901A (en) 1991-02-25 1993-07-20 Idaho Research Foundation, Inc. Partial reduction of particulate iron ores and cyclone reactor
WO1993006251A1 (en) * 1991-09-20 1993-04-01 Ausmelt Pty. Ltd. Process for production of iron
DE4307484A1 (de) 1993-03-10 1994-09-15 Metallgesellschaft Ag Verfahren zur Direktreduktion von eisenoxidhaltigen Materialien mit festen kohlenstoffhaltigen Reduktionsmitteln
JPH06271919A (ja) 1993-03-22 1994-09-27 Nippon Steel Corp 溶融還元炉用の石炭、鉱石の前処理方法
US5869018A (en) * 1994-01-14 1999-02-09 Iron Carbide Holdings, Ltd. Two step process for the production of iron carbide from iron oxide
AUPN226095A0 (en) * 1995-04-07 1995-05-04 Technological Resources Pty Limited A method of producing metals and metal alloys
AUPN639995A0 (en) 1995-11-03 1995-11-30 Technological Resources Pty Limited A method and an apparatus for producing metals and metal alloys

Also Published As

Publication number Publication date
AUPO276496A0 (en) 1996-10-31
WO1998015662A1 (en) 1998-04-16
CN1071796C (zh) 2001-09-26
DE69717310D1 (de) 2003-01-02
RU2198937C2 (ru) 2003-02-20
EP0950117A1 (de) 1999-10-20
CA2267776A1 (en) 1998-04-16
UA63913C2 (uk) 2004-02-16
NO991583L (no) 1999-05-26
EP0950117A4 (de) 1999-12-29
DE69717310T2 (de) 2003-09-04
BR9711873A (pt) 1999-08-24
US6273934B1 (en) 2001-08-14
ZA978576B (en) 1998-03-26
ID22145A (id) 1999-09-09
CN1238809A (zh) 1999-12-15
NO322992B1 (no) 2006-12-18
NO991583D0 (no) 1999-03-30

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